In this presentation, we will explore the connections between hearing and tooth loss on cognitive function. Our research draws from nationally representative data from the Health and Retirement Study. Within this study, we analyze the relationships between two highly modifiable factors that significantly influence cognitive function: hearing loss and tooth loss. While previous research has established links among these variables, the precise underlying mechanisms have remained perplexing. The primary objective of this presentation is to analyze the complex relationship between hearing, tooth loss, and cognitive function, contributing to our understanding of the unique challenges faced by the aging population.